Name: Pollen forecast for Houston (2026-10-04)
Creator: Pollen Count
Published: 2026-10-04T15:54:32Z
License: https://pollencount.org/terms/

The pollen count in Houston today is high, driven mainly by Parthenium Weed.

HIGH

6 active species

Refreshing live forecast…

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4-Day Forecast:

Morning

Grass LOW

Tree LOW

Weed MED

Afternoon

Grass MED

Tree LOW

Weed HIGH

Evening

Grass LOW

Tree LOW

Weed MED

Species	Level	Count
🌿 Parthenium Weed	HIGH	18 grains/m³
🌾 Grass (mixed)	MED	9 grains/m³
🌾 Bermuda Grass	MED	6 grains/m³
🌿 Pellitory-of-the-wall	LOW	3 grains/m³
🌿 Russian Thistle	LOW	3 grains/m³
+35 more tracked Pigweed Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Parthenium Weed	MED	12 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌾 Bermuda Grass	MED	8 grains/m³
🌿 Pellitory-of-the-wall	LOW	2 grains/m³
🌿 Russian Thistle	LOW	2 grains/m³
+35 more tracked Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Parthenium Weed	HIGH	24 grains/m³
🌾 Grass (mixed)	MED	12 grains/m³
🌾 Bermuda Grass	MED	8 grains/m³
🌿 Russian Thistle	LOW	4 grains/m³
🌿 Pellitory-of-the-wall	LOW	3 grains/m³
+35 more tracked Pigweed Box Elder Alder Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS
🌿 Parthenium Weed	MED	8 grains/m³
🌾 Grass (mixed)	MED	8 grains/m³
🌾 Bermuda Grass	MED	5 grains/m³
🌿 Pellitory-of-the-wall	LOW	1 grains/m³
🌿 Russian Thistle	LOW	1 grains/m³
+35 more tracked Box Elder Alder Pigweed Common Ragweed Western Ragweed Giant Ragweed Sagebrush Mugwort Paper Birch Silver Birch Downy Birch Australian Pine Japanese Cypress Fat Hen Hazel Japanese Cedar Mediterranean Cypress Cock's-foot Ash Mountain Cedar Perennial Ryegrass White Mulberry Olive Upright Pellitory Timothy Grass Ribwort Plantain London Plane Black Poplar Mesquite White Oak Holm Oak English Oak Common Sorrel Field Elm Stinging Nettle All species in the app: Android iOS

Last updated: 15:54 UTC

4-Day Forecast	Tree	Grass	Weed
Sun 4 Oct	LOW	MED	HIGH
Mon 5 Oct	LOW	MED	MED
Tue 6 Oct	LOW	MED	HIGH
Wed 7 Oct	LOW	MED	MED

Map of Houston (29.7604°, -95.3698°)

More in United States

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What Pollen Levels Mean

LOW Symptoms are unlikely

MED Moderate risk of symptoms

HIGH Widespread symptoms likely

V.HI Expect significant symptoms

X.HI Extremely high symptom likelihood & severity